How severe is CVE-2026-5550?

CVE-2026-5550 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-5550 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5550?

CVE-2026-5550 affects Tenda Ac10 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5550?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-5550 have an EU (EUVD) identifier?

Yes. CVE-2026-5550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19048.

When was CVE-2026-5550 published?

CVE-2026-5550 was published on 2026-04-05 and last updated on 2026-06-17.

CVE-2026-5550

CVE-2026-5550 is a high-severity vulnerability in Tenda Ac10 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 8.7
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19048
Weakness: CWE-119
Affected product: Tenda Ac10 Firmware
Published: 2026-04-05
Last modified: 2026-06-17

Description

A vulnerability was identified in Tenda AC10 16.03.10.10_multi_TDE01. This affects the function fromSysToolChangePwd of the file /bin/httpd. The manipulation leads to stack-based buffer overflow. The attack may be initiated remotely. Multiple endpoints might be affected.

Frequently asked questions

What is CVE-2026-5550?: A vulnerability was identified in Tenda AC10 16.03.10.10_multi_TDE01. This affects the function fromSysToolChangePwd of the file /bin/httpd. The manipulation leads to stack-based buffer overflow. The attack may be initiated remotely. Multiple endpoints might be affected.
How severe is CVE-2026-5550?: CVE-2026-5550 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-5550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5550?: CVE-2026-5550 affects Tenda Ac10 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5550?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-5550 have an EU (EUVD) identifier?: Yes. CVE-2026-5550 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19048.
When was CVE-2026-5550 published?: CVE-2026-5550 was published on 2026-04-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:ac10_firmware:16.03.10.10_multi_tde01:*:*:*:*:*:*:*

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